A Study Evaluating the Safety, Pharmacokinetics, and Activity of the Combination of Cevostamab and Elranatamab in Participants With Relapsed or Refractory Multiple Myeloma (R/R MM)

NCT ID: NCT05927571

Last Updated: 2026-01-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-08-10

Study Completion Date

2027-07-31

Brief Summary

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The purpose of the study is to evaluate safety and tolerability of the combination of cevostamab plus elranatamab and also determine the recommended Phase II regimen (RP2R) for the study treatment. The study consists of a safety lead-in stage, and an expansion stage.

Detailed Description

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Conditions

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Relapsed or Refractory Multiple Myeloma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Safety Lead-In Cohort

Participants will receive cevostamab, intravenously (IV), in combination with elranatamab, subcutaneously (SC), with step-up dosing of each drug in pre-phase following which they will receive elranatamab, at the assigned dose as a SC injection until disease progression or unacceptable toxicity. Participants will also receive cevostamab at the assigned dose as IV infusion until disease progression or unacceptable toxicity or up to 1 year on treatment, whichever occurs first.

Group Type EXPERIMENTAL

Cevostamab

Intervention Type DRUG

Cevostamab solution for infusion will be administered as IV as specified in each treatment arm.

Elranatamab

Intervention Type DRUG

Elranatamab solution for injection will be administered SC as specified in each treatment arm.

Tocilizumab

Intervention Type DRUG

Tocilizumab will be used as rescue medication for participants who experience a cytokine release syndrome (CRS) event.

Dose Expansion Cohort (Combined Therapy)

Participants will receive cevostamab, IV, in combination with elranatamab, SC, with step-up dosing in pre-phase following which they will receive elranatamab, at the assigned dose as a SC injection until disease progression or unacceptable toxicity. Participants will also receive cevostamab at the assigned dose as IV infusion until disease progression or unacceptable toxicity or up to 1 year on treatment, whichever occurs first.

Group Type EXPERIMENTAL

Cevostamab

Intervention Type DRUG

Cevostamab solution for infusion will be administered as IV as specified in each treatment arm.

Elranatamab

Intervention Type DRUG

Elranatamab solution for injection will be administered SC as specified in each treatment arm.

Tocilizumab

Intervention Type DRUG

Tocilizumab will be used as rescue medication for participants who experience a cytokine release syndrome (CRS) event.

Dose Expansion Cohort (Monotherapy)

Participants will receive elranatamab SC, with step-up dosing in pre-phase following which they will receive elranatamab, at the assigned dose as a SC injection until disease progression or unacceptable toxicity.

Group Type EXPERIMENTAL

Elranatamab

Intervention Type DRUG

Elranatamab solution for injection will be administered SC as specified in each treatment arm.

Interventions

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Cevostamab

Cevostamab solution for infusion will be administered as IV as specified in each treatment arm.

Intervention Type DRUG

Elranatamab

Elranatamab solution for injection will be administered SC as specified in each treatment arm.

Intervention Type DRUG

Tocilizumab

Tocilizumab will be used as rescue medication for participants who experience a cytokine release syndrome (CRS) event.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
* Diagnosis of R/R MM per IMWG criteria
* For female participants of childbearing potential: agreement to remain abstinent or use contraception
* For male participants: agreement to remain abstinent or use a condom

Exclusion Criteria

* Prior treatment with cevostamab or another agent targeting fragment crystallizable receptor-like 5 (FcRH5)
* Prior treatment with elranatamab
* Prior allogeneic stem cell transplantation (SCT)
* Absolute plasma cell count exceeding 500 per milliliter (mL) or 5% of the peripheral blood white cells
* Diagnosis of Waldenström macroglobulinemia or polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, skin changes (POEMS) syndrome
* Participants with known history of amyloidosis
* History of autoimmune disease
* History of confirmed progressive multifocal leukoencephalopathy
* Peripheral motor polyneuropathy of prespecified grade
* Known or suspected chronic cytomegalovirus (CMV) and/or Epstein-Barr virus (EBV) infection
* Known history of hemophagocytic lymphohistiocytosis (HLH) or macrophage activation syndrome (MAS)
* Acute or chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection
* Human immunodeficiency virus (HIV) seropositivity
* History of central nervous system (CNS) myeloma disease
* Significant cardiovascular disease
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Genentech, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Royal Prince Alfred Hospital

Camperdown, New South Wales, Australia

Site Status RECRUITING

Calvary Mater Newcastle

Waratah, New South Wales, Australia

Site Status RECRUITING

The Alfred Hospital

Prahan, Victoria, Australia

Site Status RECRUITING

Rambam Health Care Campus

Haifa, , Israel

Site Status RECRUITING

Hadassah University Hospital - Ein Kerem

Jerusalem, , Israel

Site Status RECRUITING

Sheba Medical Center - PPDS

Ramat Gan, , Israel

Site Status RECRUITING

Tel Aviv Sourasky Medical Center PPDS

Tel Aviv, , Israel

Site Status RECRUITING

The Catholic University of Korea - Seoul St. Mary's Hospital (Kangnam St. Mary's Hospital)

Seocho, , South Korea

Site Status RECRUITING

Seoul National University Hospital

Seoul, , South Korea

Site Status RECRUITING

Samsung Medical Center - PPDS

Seoul, , South Korea

Site Status RECRUITING

Countries

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Australia Israel South Korea

Central Contacts

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GO43979 https://forpatients.roche.com/

Role: CONTACT

888-662-6728 (U.S. Only)

Other Identifiers

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2023-504657-13-00

Identifier Type: CTIS

Identifier Source: secondary_id

GO43979

Identifier Type: -

Identifier Source: org_study_id

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